Top 10 Furnace Repair in Denver, CO
The best furnace repair companies in Denver, CO for 2026 include Apex Clean Air AC & Heating Repair (4.9), Roots Heating & Air (5), Heart Heating, Cooling, Plumbing & Electric (4.8). All offer 24/7 emergency heating repair, installation, and maintenance for gas, electric, and oil furnaces.
Right Away Heating
Heart Heating, Cooling, Plumbing & Electric
Ultimate Heating, Cooling, Plumbing & Electric
Golden West Plumbing, Heating, Air Conditioning, and Electrical
Absolute Plumbing, Electrical, Heating & Air
Roots Heating & Air
Apex Clean Air AC & Heating Repair
Doctor Fix-It Plumbing, Heating, Cooling & Electric
Sanders & Johnson Heating, Cooling and Plumbing
Major Heating and Air Conditioning - Denver
How We Ranked These Denver Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Denver market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does furnace repair cost in Denver, CO?
Furnace repair in Denver typically costs $150-$500. Ignitor replacement runs $200-$350, blower motor repair $300-$600, and heat exchanger replacement $1,500-$3,000.
How do I know if my furnace needs repair?
Signs include uneven heating, strange noises, frequent cycling, yellow pilot flame, increased energy bills, and the unit being over 15 years old.
Is no heat an emergency?
Yes, especially in winter. Most Denver HVAC companies offer 24/7 emergency heating service. Frozen pipes from no heat can cause thousands in water damage.